Improvement in suefaoe condensers



N. PETERS. FHOTD-LITHOGRAPHER. WASHINGTON U C,

@uitrit `tettr @anni @ffies NORMAN W. WHEELER, OF. BROOKLYN, 'NEV YORK.

` Leia-s Panni N0. 66,194, (una Jmw i867.

IMPROVEMENT IN SURFACE GONDENSERS.

@The Sduhulr ufunh tu in .tlg-esc fifutus lntut 'fun' mating' part ,of tigt simu.

TO ALL IVI-IOM IT MAY CONCERN:

Beit known that I, NORMAN W. WHEELER, of the city of Brooklyn, E. D., county of Kings, and State of New York, have invented a new and useful Improvement in Surface Condenscrs; and I hereby declare that the following is a full and exact description et' the construction and operation thereof, reference' heing had to the accompanying drawing, with letters et' reference marked thereon, forming a part of this specification, in

Figure I represents a trans-versc section.

Figure II,a sectional plan.

Figure III, aplan; and

Figure IV an elevation- V- Iiike letters indicating the same parts in the several figures.

My invention relates to that classof surface eondenscrs 'in which the cooling iiuid is projected against the condensing surfaces in streams, passing through space not occupied by liquids; and the object is to secure the highest possible velocity of discharge, under a given pressure, whether the` quantity ot' fluid which passes in a given time is more or less. 'To accomplish `this object I provide series of discharging nozzles, so constructed that when no fluid is forcedthrough them the orifice will be' closed, or nearly so, through Vthe instrumentality of springs or weights, but so that the fluid seeking. passage through the nozzles under pressure will tend to overcome the energy et' the springs or weights, and cause the nozzles to open and remain so, to an extent consonant with the volume of the uid seelting passage and its desired velocity as it issues from the nozzles.

In the drawings, A B isa'part of thc circulating-head through ivhich the cooling iuidis forced by pumps, or other devices, whence itpasscs through the channel C to the annular space I) D, and out through the nozzle j) le). E E is a barrel made truly cylindrical upon the inside, and g g a cylindrical plunger, fitting es tightly into the barrel E E as is consistent'with a free longitudinal movement. is a conical end of-the plunger g g, which tits into the nozzlepp when the plunger is advanced, and closes the nozzle. z Vis a spring, abutting against the bail 11A and against the plunger, tending to force the plunger forward and close the nozzlepp; and is a rod placed inside the spring to prevent its buckling. Non, the barrel E E and plunger gg having a greater area than the nozzle p p, and a pressure et' lluid existing in the spaceD D, the pressure acting over the difference of the areas 0F22 p and g gwill tend to overcome the energy of the spring or its equivalent weight, and it' the pressure be increased the plunger will be forced back until the nozzle `is suiiiciently opened .by the partial Withdrawal of the cone o to allow the fluid to pass out through the nozzle at a velocity governed by the pressure due to the energy of the spring'z. As the nozzle pp is opened more and. more the diiferential area upon which the pressure acts to force back' the plunger g g is increased in proportion, but at the same time the spring z is more and more compressed, and resistswith an inereasing'euergy, so that the two qualities may be adjusted, in practice, to deliver the coolingluid at a nearly uniform velocity, whether the volume be great or little. 4

Herctoforc in surface condenser-s of this class, discharge nozzles of vfixed dimensions have been used; and if' the circulating-pumps were run at thc proper speed the iuid would be discharged at the .proper velocity to secure a high grade of eiiicicncy in the condenser; but if the speed of the pump were slackened the velocityiof discharge was slackened in the same ratio, and the elliciency of the condenser diminished in a. greater ratio, for reasons well known to science; thus rendering such condensers unsatisfactory when it was necessary to run the engines to which the pumps were Yattached a-t low speeds. I l

Thc'clamp 7c la, bolt l, and steady-pins m m, the uses of which are obvious, form a ready and convenient means of attaching such nozzles to the circulating-head A B. v Y

I do not limit myself to thev precise former proportion of the several parts herein described;v butI claim- The combination of the abovc-described discharge nozzle with a surface condenser.

` NORMAN W. WHEELER. Witnesses:

FRANK C.- PRINDLE, Tnuononn Snerrrsu. 

